OK, let me clarify it.
With 10 mbps internet line, I am working on local pages document on my macbook air. However, I save it in iCloud (Pages). When I open the file on my mac desktop, hours later, it is still not synced to altered one. Had I saved the original altered file in dropbox, it will momentarily sync, then when I open desktop, it will also momentarily sync the file in my desktop's dropbox folder. iCloud however, doesn't do it quickly. It takes hours and even more time to get it synced.